Mo, P-Q, Marshall, AM and Yu, H-S (2017) Interpretation of Cone Penetration Test Data in Layered Soils Using Cavity Expansion Analysis. Journal of Geotechnical and Geoenvironmental Engineering, 143 (1). 04016084. ISSN 1090-0241
Abstract
Cavity expansion theory plays an important role in many geotechnical engineering problems, including the cone penetration test (CPT). One of the challenges of interpreting CPT data is the delineation of interfaces between soil layers and the identification of distinct thin layers, a process which relies on an in-depth understanding of the relationship between penetrometer readings and soil properties. In this paper, analytical cavity expansion solutions in two concentric regions of soil are applied to the interpretation of CPT data, with a specific focus on the layered effects during penetration. The solutions provide a large-strain analysis of cavity expansion in two concentric regions for dilatant elastic-perfectly plastic material. The analysis of CPT data in two-layered soils highlights the effect of respective soil properties (strength, stiffness) on CPT measurements within the influence zones around the two-soil interface. Results show good comparisons with numerical results and elastic solutions. A simple superposition method of the two-layered analytical approach is applied to the analysis of penetration in multilayered soils. A good comparison with field data and numerical results is obtained. It is illustrated that the proposed parameters effectively capture the influence of respective soil properties in the thin-layer analysis. It is also shown that results based on this analysis have better agreement with numerical results compared with elastic solutions.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | (c) 2016, American Society of Civil Engineers. This is an author produced version of a paper published in the Journal of Geotechnical and Geoenvironmental Engineering. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | cone penetration test, layered soils, cavity expansion analysis |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Institute for Resilient Infrastructure (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 20 Apr 2017 11:23 |
Last Modified: | 11 Jan 2023 13:03 |
Published Version: | https://doi.org/10.1061/(ASCE)GT.1943-5606.0001577 |
Status: | Published |
Publisher: | American Society of Civil Engineers |
Identification Number: | 10.1061/(ASCE)GT.1943-5606.0001577 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:115178 |